If can not log into the TP-LINK page, you can check the IPV4 default gateway on your computer. Normally, the default gateway is IP address of the router in your house. Still no, then reset the...

This is the latest firmware. The firmware you got is released on Jan31th, 2013.

Hi, Jan, the power line adapter must be in the same power circuit and put in the wall socket. They can not work in the extension socket.

I think you can try to change the MTU size on the Acher 7 on WAN menu. If you are using a cable modem, you can also try to do the MAC Clone. For the wireless setting, you can try to channel the...

Is your ISP restrict some websites? Try to reset the modem to factory? Is it the problem of TL-WPA281 or your netgear? I think you can post your problem to the Netgear forum.

The TL-WPA4220 can supply the WIFI by itself even though it can not see the signal from the main router. Maybe you can see a name says "TP-LINK XXX" around your range. This may be from TL-WPA4220....